The first part of the seventh session of the Ad Hoc Working Group on Long-term Cooperative Action under the UN Framework Convention on Climate Change (AWG-LCA 7) and the first part of the ninth session of the Ad Hoc Working Group on Further Commitments for Annex I Parties under the Kyoto Protocol (AWG-KP 9) took place from 28 September- 9 October 2009 in Bangkok, Thailand.

On the sidelines of the opening of the 64th session of the UN General Assembly, UN Secretary-General Ban Ki-moon hosted a high-level event on reducing emissions from deforestation and forest degradation (REDD).

7 October 2009: In a message delivered to the 2009 Global Renewable Energy Forum, organized by the UN Industrial Development Organization (UNIDO) along with the Government of Mexico, UN Secretary-General Ban Ki-moon urged business leaders and governments to invest in green energy schemes that move economies away from carbon-intensive energy strategies.

24 September 2009: The UN Environment Programme (UNEP) has released a report entitled “Climate Change Science Compendium 2009.” The report, compiled in association with scientists around the world, reviews some 400 major scientific contributions to our understanding of Earth Systems and climate change that have been released through peer-reviewed literature, or from research institutions, over the last three years.

24 September 2009: UN Environment Programme (UNEP), the International Union of Railways (UIC) and WWF launched a symbolic one-month and nearly 9,000 kilometre-long train journey from Kyoto to Copenhagen to document the impacts of climate change and raise awareness of low-carbon transport solutions.

23 September 2009: The UN Environment Programme (UNEP) has announced that sixteen new umbrella organizations, including cities, cooperatives, railways, postal services, industry and civil society associations, have joined the Climate Neutral Network – an initiative to promote global action to de-carbonize our economies and societies.